Quicker time periods on mobile

I use Quire to generate calendar events. Setting the time is quite laborious due to needing to scroll through every single minute in an hour. Something closer to Google Calendar with 30 or 15 minute increments but with the option to type would be easier.

Also, some sane default due date should be prefilled based on the start date. Right now it defaults to "now" which is inconvenient for creating calendar events

Via Quire Android